647￿)￿￿+!￿￿￿￿￿￿￿2￿￿￿￿￿￿￿￿￿￿￿￿￿/#￿￿7)79

READING ACTUAL VALUES

1.IGNITION : Position 1

2.Set temperature selector to 72 degrees F.

3.Press the REST button for more than 6 seconds.

4.The left display will alternately show the number "01" and the in-car temperature.

5.Press the FAN button and the next component number and its value will be displayed.

6.Press the REST button to end the test program.

COMPONENT UNDER TEST

Number

Component

 

 

01

In-Car Temperature Sensor with Aspirator Blower (B10/4)

 

 

02

Outside Temperature Sensor (B14)

 

 

03

Left Heater Core Temperature Sensor (B10/2)

 

 

05

Evaporator Temperature Sensor (B10/6)

 

 

06

Engine Coolant Temperature Sensor (ECT) (B11/4)

 

 

07

Refrigerant Pressure in Bar

 

 

08

Refrigerant Temperature Sensor (B12/1)

 

 

09

Not Used

 

 

10

Blower Control Voltage

 

 

20

Control Current for Auxiliary Fan exp. : 7 = 7 mA

 

 

21

Engine RPM. example 00..99 (x100) = 9900

 

 

22

Vehicle Speed

 

 

23

PIN 58D exp. 99.0 = 99% of Battery Voltage

 

 

24

Battery Voltage : 12.8 = 12,8 Volt

 

 

40

A/C Controller Software Version Coding

 

 

41

A/C Controller Hardware Version

 

 

42

Variant code 1

 

 

43

Variant code 2

 

 

50

Not Used

 

 

51

Not Used

 

 

52

Not Used

 

 

54

ON/OFF A/C Compressor emergency off signal from engine control module.

 

 

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Mercedes-Benz CS1000 manual 647+!2/#779